专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US5200138A Spectral shift-producing subassembly for use in a nuclear fuel assembly 失效
标题翻译：在核燃料组件中使用的光谱转换生产分层
公开(公告)号：US5200138A
公开(公告)日：1993-04-06
申请号：US740342
申请日：1991-08-05
申请人： Harry M. Ferrari
发明人： Harry M. Ferrari
IPC分类号： G21C7/27
CPC分类号： G21C7/27 , Y02E30/39
摘要： A spectral shift-producing subassembly is composed of a plurality of sealed empty water displacement rodlets incorporating a spectral shift-producing capability. Each of the rodlets includes an elongated tube sealed at its opposite ends and having an axially-extending annular wall section of reduced thickness compared to the thickness of the wall of the remainder of the rodlet. The respective reduced thicknesses of the axial wall sections of the rodlets can be varied to adapt the rodlets to rupture at different times and permit water to enter the rodlets to produce an increase in the water/fuel ratio and thereby an increase in reactivity. The rodlets can also have different levels of pressurization to initiate rupture at different times.

22. 发明授权

US5005834A Multi-frame racket 失效
标题翻译：多帧球拍
公开(公告)号：US5005834A
公开(公告)日：1991-04-09
申请号：US495231
申请日：1990-03-16
申请人： Matthew F. Ferrari , Harry M. Ferrari , John M. Shallenberger
发明人： Matthew F. Ferrari , Harry M. Ferrari , John M. Shallenberger
IPC分类号： A63B49/02
CPC分类号： A63B49/02 , A63B49/03 , A63B2049/0211
摘要： A sports racket has a handle and a multi-frame. The multi-frame includes a primary frame defining a throat connected to the handle and a hoop-shaped head connected to the throat and encompassing an open region. The head has a plurality of stringing holes defined therethrough for attaching stringing to the head and across the open region. The multi-frame also includes supplementary frames and ribs. The supplementary frames are disposed in spaced relation and adjacent to opposite sides of the primary frame. The supplementary frames are coextensive with all or a portion of the primary frame head, plus all or a portion of the primary frame throat. The ribs are spaced from one another and extend between and rigidly interconnect the supplementary frames with coextensive portions of the primary frame. The ribs and supplementary frames serve to increase the stiffness of the primary frame, reducing axial and torsional deflections thereof upon striking a ball by the stringing across the open region of the head. The multi-frame further includes supplementary bracing interconnecting portions of the supplementary frames alone or with the primary frame in the region of the throat thereof.
摘要翻译：运动球拍具有手柄和多框架。多框架包括限定连接到手柄的喉部的主框架和连接到喉部并且包围开放区域的环形头部。头部具有穿过其设置的多个穿刺孔，用于附接到头部并穿过开放区域。多框架还包括辅助框架和肋骨。辅助框架以间隔的关系设置并且与主框架的相对侧相邻。辅助框架与主框架头部的全部或一部分加上主框架喉部的全部或一部分共同延伸。肋彼此间隔开并且在主框架的共同部分之间延伸并且使辅助框架与主框架的共同部分刚性互连。肋和补充框架用于增加主框架的刚度，通过穿过头部的开放区域的穿过来减少在撞击球时的轴向和扭转偏转。多框架还包括辅助框架的单独辅助框架的辅助支撑互连部分或与其喉部区域中的主框架。

23. 发明授权

US4903967A Racket frame having holes for tailoring frame stiffness 失效
标题翻译：具有用于调整框架刚度的孔的球拍框架
公开(公告)号：US4903967A
公开(公告)日：1990-02-27
申请号：US303782
申请日：1989-01-27
申请人： Harry M. Ferrari , Michael R. Swartz
发明人： Harry M. Ferrari , Michael R. Swartz
IPC分类号： A63B49/02
CPC分类号： A63B49/02 , A63B2049/0211
摘要： A racket frame, such as for a tennis racket, has a head portion, a handle portion and a throat portion extending between and interconnecting the head and handle portions. The head portion encompasses an open region and has a first plurality of stringing holes for attaching stringing to the head portion and across the open region. The throat portion is in the form of a pair of legs in a generally V-shaped configuration. The frame also includes a second plurality of non-stringing holes defined in one or both of the head and throat portions for forming voids in the material thereof to reduce the weight and tailor the stiffness thereof in a manner which reduces axial and torsional deflections of the head portion upon striking a ball by the stringing across the open region of the head portion.
摘要翻译：诸如用于网球拍的球拍框架具有头部，手柄部分和在头部和手柄部分之间延伸并在其之间互连的喉部。头部包括开放区域，并且具有第一多个用于附接到头部部分并穿过开放区域的穿刺孔。喉部是一般为V形构型的一对腿的形式。框架还包括限定在头部和喉部中的一个或两个中的第二多个非穿刺孔，用于在其材料中形成空隙，以减小重量并且以减少其中的轴向和扭转偏转的方式来调整刚度通过穿过头部的开放区域的弦线打击球时的头部。

24. 发明授权

US4811980A Collapsible ball retriever and storage unit 失效
标题翻译：可折叠的球猎人和存储单元
公开(公告)号：US4811980A
公开(公告)日：1989-03-14
申请号：US207677
申请日：1988-06-16
申请人： Harry M. Ferrari , John M. Shallenberger
发明人： Harry M. Ferrari , John M. Shallenberger
IPC分类号： A63B47/02
CPC分类号： A63B47/02
摘要： A collapsible ball retriever and storage unit is in the form of a receptacle composed of a plurality of side grills pivotally hinged one to the next, and a top gate and a bottom grate being pivotally hinged to respective ones of the side grills. The side grills are pivotable relative to one another to convert them between erected and collapsed positions, whereas the top gate and bottom grate are pivotable relative to the side grills to convert the top gate and bottom grate between closed and retracted opened positions. The gate and grate are latchable to others of the side grills disposed opposite to the ones thereof to which the gate and grate are respectively hinged. The bottom grate is adapted to rigidly retain the side grills in their erected position when the bottom grate is disposed in the closed position. Further, the bottom grate has members defining ball passages therethrough which adapts the receptacle for retrieving and storing balls when the side grills are in the erected position and the bottom grate is in the closed position.
摘要翻译：可折叠的球回收器和存储单元是由多个侧栅格组成的容器的形式，所述多个侧栅格一个接一个枢转地铰接，并且顶栅和底格栅铰接到相应的侧格栅中。侧烤架相对于彼此可枢转以在竖立和折叠位置之间转换，而顶部浇口和底部格栅可相对于侧烤架枢转，以将顶部浇口和底部格栅转换成闭合和缩回的打开位置。闸门和格栅可与其栅栏和格栅分别铰接在其上的与其相对的侧格栅上的其他人闩锁。当底部格栅设置在关闭位置时，底部格栅适于将侧格栅刚性地保持在其竖立位置。此外，底部格栅具有限定穿过其中的球形通道的构件，当侧面格栅处于竖立位置并且底部格栅处于关闭位置时，适配容器用于回收和存储球。

25. 发明授权

US4687631A Top nozzle mounted reusable fastener device in a reconstitutable nuclear fuel assembly 失效
公开(公告)号：US4687631A
公开(公告)日：1987-08-18
申请号：US775209
申请日：1985-09-12
申请人： John F. Wilson , Robert K. Gjertsen , Harry M. Ferrari
发明人： John F. Wilson , Robert K. Gjertsen , Harry M. Ferrari
IPC分类号： G21C3/33 , G21C3/334 , G21C3/32
CPC分类号： G21C3/334 , Y02E30/40 , Y10T403/1683 , Y10T403/589
摘要： A reusable fastener device includes an attachment nut and a retainer housing mounted to the adapter plate of the fuel assembly top nozzle and removable with the top nozzle upon reconstitution of the fuel assembly. The attachment nut has a central tubular stem and upper and lower flanges connected to and extending radially outwardly from opposite ends of the stem. The stem is internally threaded for mating with the threaded upper end plug extension of the strucutural member. The upper flange of the nut has a conical-shaped lower surface and a periphery adapted for engagement in order to rotate the nut for threading onto and unthreading from the structural member extension between fastened and unfastened positions. The lower flange of the nut is in the form of a plurality of radial segments extending outwardly from the stem and angularly spaced from one another so as to define a plurality of cutouts therebetween which alternate with the segments. The retainer housing has a tubular hollow body and a plurality of upper sectors and lower tabs connected to and extending respectively radially inwardly and outwardly from opposite ends of the tubular body. The upper sectors are angularly spaced from one another so as to define a plurality of openings sized to receive the radial segments of the nut therethrough. Also, the upper sectors extend radially inwardly from the tubular body so as to define a central opening sized to receive the central stem of the nut and to define an interrupted conical-shaped upper surface surrounding the central opening which matches the conical-shaped lower surface on the upper flange of the nut. The lower tabs rest upon and are rigidly connected to the top nozzle adapter plate so as to align the central opening of the retainer housing with the hole through the adapter plate and dispose the upper sectors in a location spaced from the adapter plate at which their interrupted conical-shaped upper surface will be contacted by the conical-shaped lower surface of the upper flange of the nut when the central stem thereof is threaded onto the upper end extension of the structural member to the fastened position. The upper sectors are yieldably deflectible upon being contacted by the upper flange of the nut such that inner edges of the upper sectors engage the central stem of the nut so as to rotationally lock the lower flange of the nut to the adapter plate when the nut is rotated to its fastened position. Finally, the retainer housing also includes auxiliary tabs attached to the upper sectors and being bendable between open and closed positions for respectively allowing and preventing passage of the lower segments of the nut through the openings defined between the upper sectors of the retainer housing.

26. 发明授权

US4684504A Bow resistant structural member for fuel assemblies in non-control rod locations of a nuclear reactor core 失效
标题翻译：核反应堆核心的非控制杆位置的燃料组件的弓形结构构件
公开(公告)号：US4684504A
公开(公告)日：1987-08-04
申请号：US748855
申请日：1985-06-26
申请人： John F. Wilson , Robert K. Gjertsen , Harry M. Ferrari
发明人： John F. Wilson , Robert K. Gjertsen , Harry M. Ferrari
IPC分类号： G21C3/33 , G21C3/16 , G21C3/30 , G21C3/326 , G21C3/32
CPC分类号： G21C3/326 , G21C3/16 , G21Y2002/303 , G21Y2004/30 , Y02E30/38
摘要： A fuel assembly for use at non-control rod locations of a nuclear reactor core includes top and bottom nozzles and longitudinal structural members extending between and attached to the nozzles for forming an integral unitary structure. One or more of the structural members includes an elongated hollow cladding tube extending between the top and bottom nozzles and end plugs secured to opposite ends of the tube for hermetically sealing and attaching the tube to the top and bottom nozzles. The improvements in the structural member relate to features for reducing fuel assembly bow. Such features relate to a quantity of thermal or irradiation-induced creep resistant material and pretensioning means positioned within the tube. The creep resistant material is a ceramic material in stacked pellet form and coated with a burnable adsorber material. The pretensioning means applies a predetermined compressive load to the ceramic pellet stack and reacts the load so as to preload the tube in a state of pretension having a magnitude sufficient to substantially counteract an axial load typically transmitted through the unitary structure of the fuel assembly and thereby greatly reduce the compressive stress in the structural member tube. There are two embodiments of the pretensioning means. In one embodiment, it is an elongated bellows type device positioned within the tube between the ceramic pellet stack and one of the tube ends, with the interior of the bellows type device being pressurized to create a predetermined axial force therein which places the ceramic pellet stack in compression and the tube in the state of pretension. In the other embodiment, it is an arrangement of belleville springs positioned within the tube between the ceramic pellet stack and one of the tube ends and stacked both in series and in parallel.
摘要翻译：在核反应堆核心的非控制杆位置使用的燃料组件包括顶部和底部喷嘴以及在喷嘴之间延伸并连接到喷嘴上以形成整体单一结构的纵向结构构件。一个或多个结构构件包括在顶部和底部喷嘴之间延伸的细长的中空包层管，以及固定到管的相对端的端塞，用于将管密封并附接到顶部和底部喷嘴。结构构件的改进涉及用于减少燃料组件弓的特征。这些特征涉及一定量的热或照射诱导的抗蠕变材料和位于管内的预张紧装置。抗蠕变材料是层叠的颗粒形式的陶瓷材料，并涂覆有可燃的吸附材料。预张紧装置将预定的压缩载荷施加到陶瓷颗粒堆叠并且使负载反应，以便在预紧力的状态下对管进行预加载，其尺寸足以基本上抵消通常通过燃料组件的整体结构传递的轴向载荷，从而大大降低了结构件管中的压应力。预紧装置有两个实施例。在一个实施例中，它是一个细长的波纹管式装置，其位于陶瓷颗粒堆叠与管端之一内的管内，波纹管型装置的内部被加压以在其中产生预定的轴向力，将陶瓷颗粒堆叠在压缩和管中处于预紧状态。在另一个实施例中，它是布置在管内的贝氏体弹簧的布置在陶瓷颗粒堆叠和管端之一之间，并且彼此串联并联。

27. 发明授权

US4683116A Nuclear reactor 失效
标题翻译：核反应堆
公开(公告)号：US4683116A
公开(公告)日：1987-07-28
申请号：US732220
申请日：1985-05-09
申请人： Harry M. Ferrari , John F. Wilson
发明人： Harry M. Ferrari , John F. Wilson
IPC分类号： G21C3/30 , G21C3/326 , G21C3/328 , G21C3/32
CPC分类号： G21C3/328 , Y02E30/38
摘要： A nuclear reactor in which control rods are inserted in the thimbles of only certain of the fuel assemblies (which may be called controlled assemblies) in the core and the remainder of the assemblies (which may be called non-controlled assemblies) are provided with hollow structural members containing burnable poison which form these non-controlled assemblies into integrated units. The hollow structural members are formed with end plugs welded to the lower end and are open at the top. The end plug of each member is secured to the bottom nozzle of the non-controlled fuel assembly. A skeleton is formed of the bottom nozzle, the structural members secured to it and a plurality of grids spaced along the structural members. A bulge tool is then inserted in each hollow member and it is on each side of each grid. Neutron absorbers are then inserted in each hollow member and an upper end plug is welded to it. The fuel rods are then inserted in the assembly and the upper end plugs are secured to the top nozzle.Typically, there are 24 thimbles in a controlled assembly but not all thimble locations in a non-controlled assembly contain neutron-absorber structural members. Typically, there are eight structural members in a non-controlled assembly. In the other positions there are fuel rods. In reactors where there are water displacement control rods which extend over several assemblies, the so-called non-controlled assemblies may have the necessary thimbles for the water displacement rods.
摘要翻译：一个核反应堆，其中控制棒被插入在芯中的某些燃料组件（其可以被称为受控组件）的套管中，并且组件的其余部分（其可以被称为非受控组件）设置有中空包含可燃毒物的结构构件，将这些非受控组件形成为一体化单元。中空结构构件形成有焊接到下端并且在顶部开口的端塞。每个构件的端塞固定到非受控燃料组件的底部喷嘴。骨架由底部喷嘴形成，结构构件固定在其上，并且沿着结构构件间隔开多个格栅。然后将凸起工具插入每个中空构件中，并且其在每个网格的每一侧上。然后将中子吸收体插入每个中空构件中，并且将上端塞焊接到其上。然后将燃料棒插入组件中，并将上端塞固定到顶部喷嘴。通常，在受控组件中存在24个套管，但并非所有不受控组件中的顶针位置都包含中子吸收体结构构件。通常，在非控制组件中有八个结构构件。在其他位置有燃料棒。在具有延伸在多个组件上的排水控制棒的反应器中，所谓的非受控组件可以具有用于排水棒的必需的套管。

28. 发明授权

US4678632A Nuclear fuel assembly grid with predetermined grain orientation 失效
标题翻译：核燃料组装网格具有预定的颗粒取向
公开(公告)号：US4678632A
公开(公告)日：1987-07-07
申请号：US786986
申请日：1985-10-15
申请人： Harry M. Ferrari
发明人： Harry M. Ferrari
IPC分类号： G21C3/34
CPC分类号： G21C3/3424 , G21Y2002/104 , G21Y2002/206 , G21Y2002/303 , G21Y2004/30 , Y02E30/40 , Y10S376/90
摘要： Zirconium alloy or Zircaloy grid straps in a fuel assembly grid have predetermined texture (or grain orientation) to offset stress relaxation which occurs upon irradiation of the grid. Particularly, by providing "f-factor" values of the material greater in generally orthogonal, longitudinal directions of the straps than in the strap height direction, the grid strap material will undergo irradiation shrinkage in the longitudinal directions which will serve to offset stress relaxation and maintain sufficient spring force on the fuel rods extending through the cells formed by the grid straps.
摘要翻译：燃料组合网格中的锆合金或Zircaloy网格带具有预定的纹理（或晶粒取向），以抵消在电网照射时发生的应力松弛。特别地，通过提供带的大致正交的纵向方向上的材料的“f因子”值大于在带高度方向上的格子带材料将在纵向方向上经受照射收缩，这将用于抵消应力松弛和在通过网格带形成的细胞延伸的燃料棒上保持足够的弹簧力。

29. 发明授权

US4652425A Bottom grid mounted debris trap for a fuel assembly 失效
标题翻译：用于燃料组件的底部格栅安装的碎屑捕集器
公开(公告)号：US4652425A
公开(公告)日：1987-03-24
申请号：US763737
申请日：1985-08-08
申请人： Harry M. Ferrari , John F. Wilson
发明人： Harry M. Ferrari , John F. Wilson
IPC分类号： G21C3/30 , G21C3/32 , G21C3/34
CPC分类号： G21C3/3206 , G21C3/34 , G21Y2002/101 , G21Y2002/30 , G21Y2004/30 , Y02E30/40
摘要： A trap for catching debris carried by coolant flowing from the bottom nozzle of a fuel assembly to the bottom or lowermost one of the grids of the assembly which support the fuel rods in an organized array therein includes a structure disposed between the bottom nozzle and the bottom grid and generally aligned with the lower end plugs of the fuel rods. The structure forms a multiplicity of hollow cells each being open at opposite ends and defining a central cavity which receives one of the fuel rod lower end plugs while providing for passage of coolant flow therethrough from the bottom nozzle to the bottom grid. Also, the trap includes means in the form of dimples defined in each of the cells for catching debris carried into the cells by the coolant flowing therethrough. The dimples are formed from the wall portions defining the cells and extend into the cavities of the cells. Each dimple has a configuration generally arched outwardly from the wall portion which is oriented in alignment with the direction of coolant flow through the cell. The distance between those dimples formed on oppositely-disposed ones of the wall portions is slightly greater than the diameter of the fuel rod lower end plug disposed in the cavity of each cell. Additionally, the debris trap further includes structure support means in the form of a plurality of hanger straps attached at their lower ends to the structure adjacent the corners thereof and at their upper ends to the bottom grid so as to locate the structure in the spaced relationship below the bottom grid and support the structure adjacent the corners thereof from the bottom grid.
摘要翻译：用于捕获由燃料组件的底部喷嘴流向组件的底部或最下面的一个栅格的冷却剂捕获的杂物的捕集器，其以有组织的阵列的形式支撑燃料棒，包括设置在底部喷嘴和底部喷嘴之间的结构并且通常与燃料棒的下端塞子对齐。该结构形成多个中空单元，每个中空单元各自在相对端开口，并且限定了一个中央空腔，该中心腔容纳燃料棒下端塞中的一个，同时提供从底部喷嘴到底部格栅的冷却剂流通道。此外，捕集阱包括在每个细胞中限定的凹坑形式的装置，用于通过流过其中的冷却剂捕获携带到细胞中的碎屑。凹坑由限定单元的壁部分形成并延伸到单元的空腔中。每个凹坑具有通常从壁部向外拱起的构型，其被定向成与冷却剂流过单元的流动方向对齐。在相对设置的壁部之间形成的这些凹坑之间的距离略大于设置在每个单元的空腔中的燃料棒下端塞的直径。此外，碎片陷阱还包括结构支撑装置，该结构支撑装置形式为多个悬挂带，其附连在其下端附近的结构，并且在其上端附近到底部格栅，以将结构定位成间隔开的关系在底部网格下方并且从底部网格支撑邻近其角部的结构。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式